public virtual long CollectFor(LocalObjectContainer db, int id, ISlotMap slotMap)
{
var bigSet = db.GetByID(id);
db.Activate(bigSet, 1);
var btree = (BTree) Reflection4.GetFieldValue(bigSet, "_bTree");
return FileUsageStatsCollector.BTreeUsage(db, btree, slotMap);
}
